B&K Precision 2542B-GEN - Manual - Manual (Page 27)

Getting Started
27
1.6 Probe Safety
A guard around the probe body provides a finger barrier for
protection from electric shock.
Connect the probe to the oscilloscope and connect the
ground terminal to ground before you take any
measurements.
Note: To avoid electric shock when using the probe,
keep fingers behind the guard on the probe body.
Note: To avoid electric shock while using the probe, do
not touch metallic portions of the probe head
while it is connected to a voltage source. Connect
the probe to the oscilloscope and connect the
ground terminal to ground before you take any
measurements.